This is a list of the most intense tropical cyclones as measured by minimum atmospheric pressure at sea level.
[1] In the most recent and reliable records, most tropical cyclones which attained a pressure of 900 hPa (mbar) (26.56 inHg) or less have occurred in the Western North Pacific Ocean.
[2] Furthermore, on October 23, 2015, Hurricane Patricia attained the strongest 1-minute sustained winds on record at 185 knots (95 m/s; 215 mph; 345 km/h).
Data listed are provided by the official Regional Specialized Meteorological Centre, unless otherwise noted.
Storm information has been compiled back to 1851, though measurements were rarer until aircraft reconnaissance started in the 1940s, and inexact estimates were still predominant until dropsondes were implemented in the 1970s.
[4] The most intense storm in the Eastern Pacific Ocean by both sustained winds and central pressure was Hurricane Patricia.
[6] A total of 16 cyclones are listed down below reaching/surpassing an intensity of 920 hPa (27.17 inHg), with most of them occurring during El Niño seasons.
A subsequent study found that there was an average of 1–2 subtropical or tropical cyclones per year in the Southern Atlantic in recent decades.